(2007–2010) is a cornerstone of modern Spanish television, blending mystery, teen drama, and suspense. Set in an elite and isolated boarding school surrounded by a mysterious forest, the series captured millions of viewers across seven seasons. Where to Watch Online (Castellano)

: Features the full original series in its Spanish catalog. While it was briefly removed years ago, it is currently available for subscribers.

Paula, a young and imaginative girl, seems to be at the center of the supernatural events, communicating with a mysterious creature she calls the "Gnome". As Marcos and his new friends, including the rebellious and the resourceful Carolina (Ana de Armas) , start investigating, they uncover a network of secret passageways beneath the school and a terrifying conspiracy known as the Géminis Project (Proyecto Géminis). This was a plan orchestrated by Nazi scientists who had fled to Spain, aiming to create a lethal virus that would eliminate "inferior races," using the school's orphans as guinea pigs.

Una temporada de ritmo frenético donde se resuelven las incógnitas, se descubren las identidades de los traidores y se lucha contrarreloj por conseguir la cura del virus. Razones del Éxito Sostenido de la Serie